* improve/unify error-/warning-messages from r11318 a bit


git-svn-id: file:///var/svn/freetz/trunk@11319 149334a1-2f27-0410-a3b9-fc62619ac1e6
add hint to FREETZ_KERNEL_VERSION_2_6_32_60

git-svn-id: file:///var/svn/freetz/trunk@11320 149334a1-2f27-0410-a3b9-fc62619ac1e6